Spraying device



Oct, 8, 1940. w, F, OHME ET A 2,217,324

SPRAYING DEVICE Original Filed Aug. 23,. 1954 2 Sheets-Sheet 1 9 5 Wa/ter F Ohme and Ray C. Step/7cm Oct. 8, 1940. I w, QHME r AL 2,217,324

SPRAYING DEV I CE Original Filed Aug; 23, 1954 2 Sheets-Sheet 2 awe/Wham Walter F. Ohme 0/70 78 Pay C. Stephan Patented Oct. 8, 1940 PATENT OFFICE SPRAYING DEVICE Walter F. Ohme and Ray C. Stephan, Minneapolis,

mnn assigniors to North Star Specialty &

Manufacturing Company, Minneapolis, Minn., a

corporation of Minnesota Original application August 23, 1934, Serial No. 741,078. Divided and this application October 7, 1936, Serial No. 104,475

3 Claims.

Our invention relates to spraying devices and particularly to spraying devices used in conjunction with machines for washing drinking vessels, which machines include a support, and a 5 rack moveably mounted on the support and by means of which the vessels are carried past the spraying device.

An object of the invention resides in providing a device utilizing both hot and cold water.-

Another object of the invention resides in providing a device by means of which the vessels are sprayed both upon the interior. and exterior thereof.

A still further object of the invention resides in providing a spraying device which can be readily manufactured and at a nominal cost.

An object of the invention resides in providing a spraying device comprising a manifold connected to a suitable supply of water and pro- 20 vided with removable caps forming individual sprays.

A feature of the invention resides in the arrangement of the sprays.

Another object of the invention resides in the I 25 construction of the manifold and in the arrangement of the parts thereof.

A feature of the invention resides in the specific construction of the sprays.

An object of the invention resides in support- 30 ing the upper and lower sprays so as to form a single spray unit.

Other objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illus- 35 trated and/or described. In the drawings:

Fig. 1 is a medial elevational sectional view of a machine for washing drinking vessels illustrating an embodiment of my invention.

Fig. 2 is a plan sectional View taken on line,

2-2 of Fig. 1 with a portion of the rack broken away.

Fig. 3 is a fragmentary inverted plan sectional view taken on line 3-3 of Fig. 1.

Fi 4 is a sectional detail view taken on line l4 of Fig. 2 and drawn to an enlarged scale.

This application for patent is a division of our copending application for patent for Machine 5 for washing drinking vessels, Serial Number 741,078, filed August 23, 1934.

In order to fully explain the construction and operation of the invention, the spraying device has been shown as embodied in a machine for washing drinking vessels and only so much thereherein illustrated comprises a housing which we have indicated in its entirety by the reference 5 character A and in which the spraying device of the invention is installed. The washing mechanism of the invention comprises a revoluble rack B which is driven through a water motor 0. The invention proper comprises a spraying device D which is adapted to spray hot and cold water on the glasses carried by the rack as the same is rotated past the sprays. These various parts will now be more fully described.

The housing A consists of a tray II] circular in form which is constructed with a bottom II having a rim I2 extending upwardly therefrom. The bottom II is preferably sloping toward the forward portion of the tray where a drain I3 is provided by means of which the water discharged into the housing may be removed from the device.

At the outer margin of the bottom I I is provided a ledge I4 which elevates the bottom II above the surface on which the machine rests. This ledge may, if desired, be formed in continuation of the rim I2 of said tray. The'tray I0 is con-- structed as a casting or the same may be spun from sheet metal or constructed in any other suitable manner. The housing A further comprises a circular wall I5, which is secured to the rim of the tray I0 and extends upwardly therefrom. The lower edge of this wall rests in a recess I'I formed in said rim. The wall I 5 is preferably attached to said rim through small bolts I6 which pass through suitable openings in both said rim 5 and wall. Upon the upper end of the wall I5 is placed a cover or closure I8 which is circular throughout the extent thereof. This closure is provided with a flange 20 which extends downwardly therefrom and which terminates at its 40 lower end in a lip 2I by means of which the closure may be secured to the wall I5. This is accomplished through bolts 22 which pass jointly through said wall and lip the same as the bolts It. The wall I5 is of lesser circular extent than a complete circle so that an opening 23 is provided at the front of the housing through which access may be had to the interior thereof and to the drinking vessels placed upon the rack B mounted therein.

The rack B consists of a table 24 which is constructed with a number of circularly disposed concentrically arranged rings 25, 21 and 28. These rings are connected together through radially extending bars 26 to form a reticulate struc- M ture on which the drinking vessels or other dishes to be washed may be placed. The rings 25, 21 and 28 and the bars 26 all lie in a common horizontal plane so as to form a suitable support for the drinking vessels. The outer ring 21 is provided with an upwardly extending flange 29 by means of which the drinking vessels are held v upon the rack.

The table 245 is rotatably supported on a spider 31 which comprises a central tubular hub 32 connected to a circular flange 30 through radially extending arms 33. The hub of this spider has mounted in it ball bearings. 34 and 35 which are disposed at the upper and lower ends thereof.

In the center of the bottom ll of tray I is provided a boss 36 which has secured to it through a set screw 3'! an upwardly extending post 38. Post 38 is turned to receive the inner races of the two bearings 36 and 35. By means of the two bearings 3 and 33 the spider 3| is rotatably mounted. A cap 39secured to the upper end of the hub 32 covers the bearings 34 and prevents the entryof water into said bearings from above. The table 24 rests upon arms I33 extending outwardly from the flange 33 of spider 3| and is centered with respect to the axis thereof through said flange.

236 may be soldered or otherwise secured to the Cover I8.

The water motor C and the power transmission associated therewith are illustrated in Figs. 1 and: 2. This part of the invention includes a frame 40 which comprises two spaced parallel bearing plates 4|v and 42 held in spaced relation throughposts 43;. These posts are riveted to the plate 42 and the plate M is secured to said poststhrough. screws 44; threaded into said posts. In the two plates M and 32 are mounted two selflubricating bearings 4.51. which are attached to said. plates in any suitable manner. In the bearings 45 is rotatably mounted a shaft 58. Shaft has attached. to it a water wheel 5!. This wheel istconstructed from a sheet of metal which is arranged toforma back 52. which is cut. at its outer periphery to provide a plurality of blades 53 extending substantially radially with. respect to the wheel. The shaft 58 drives another shaft El (Fig; 1) through agear train 55. consisting of a number of arbors pivoted between the plates 4! and t2 and carrying intermeshing gears and pinions. Such; construction forming no particular feature of' the instant-invention has not been shown in detail, applicants original application for patent from which this application is divided being relied upon for disclosure thereof.

The shaft BI is mountedfor rotation in bearings formed in the two plates M and 42. The

upper end of the said shaft projects above the plate 4! and has attached to it a friction pinion 62;. This pinion comprises a; core 63 on which a short. section. of a rubber tube- 64- is applied,

which. tube is. held. in. position on. said core througna. screw 55 threaded into. said core. When the screw 65 is properly tightened, the

tube 64 is held from movement and the pinion 62 functions in the desired manner.

The frame M3 is mounted for swinging movement relative to the bottom H of tray it in the following manner: Extending through the two plates M. and 42 is a bolt. 65 which is screwed into a boss 53 formed on the bottom II. This bolt supports the entire frame for swinging movement clear of the bottom I l. The frame 45 is urged outwardly through a tension spring 59 which is. attached at one end to the plate Q2 and at its other end to anangle member ill serving as a spring anchor. This angle member is. attached to the bottom H in any suitable manner... The arms 33 of spider 3B are disposed toward the upper end of the flange 36 leaving the inner surface of said flange indicated at T3 unobstructed. The portion of the flange 30 having the surface 13 constitutes a friction gear with which. the friction pinion 82 may engage. This gear is. designated in its entirety by the reference numeral T l. From an inspection of Fig. 2' it will I be noted that the pinion 62" is disposed at such an. elevation as to. engage. the surface 13 of gear 55.. Through the action of the spring 69 the pinion 62 is urged into frictional engagement with. gear M and rotation of the rack B through the action of the water motor C: is procured.

The water motor C further includes a nozzle.

E5? which is connected with a source of supply of water and which is attached to. a mounting 2'56. The nozzle 15' is fixed in position and is adapted to direct a stream of water tangentially upon. the blades 53' of the water wheel 51. causes. the wheel 51 to rotate and gear 62 is correspondingly rotated at a reduced rate of speed through the action of the gear train 55'. Due to the fact that the nozzle 15 is directly'supported on the tray H a. rigid pipe connection may be uti- I 40 lized for supplying water to the same and frame it on which themotor C is supported mayswing freely. to bring the pinion 62' into proper frictional engagement with its corresponding gear M withoutv interference. This eliminates a flexible water pipe or connection for the motor.

For the purpose of spraying water upon the glasses carried onthe. rack B; the spraying device D. constituting. the. subject matter of this inven- This.

tion. is used; This. spraying, device comprises.

two spray units indicatedat 1.6 and 11". Spray unit '56 is disposed below the rack B and spray unit 11. is situated above said rack.

The. spray unit 16' consists 'of' an arcuate hollow manifold 18' which is. constructed with two..

arcuate parts 51 and 58'. The part 58 has three laterally extending branches l9, 8!! and" 81' and the two parts are connected together by means of a neck 82'. Branches- ]9 and 8.0 are arranged in forked relation. In themiddie'of'the'neck 82,

is provided a partition 83 which separates" the two parts 51 and 58', providing two separate chambers 86 and 81 within the interior of the manifold. Inthe center of: this partition is formed an opening 5'9 which" extends along said partition. A heat=insulating block 6% is disposed inthisopening andret'ard's the: passage of heat from: each of the. parts; 51: and; 5.8? to the; other. Atsuitable localities onthe partsfil and 58 of, the manifold: lflandat the ends of the branches 19,, 80 and 8| are provided; sprays 88' which are adapted, to direct fine; sprays of water upwardly for the; purpose of. washing the vessels. placed upontherack B- frombeneath said vessels. These sprays and the sprays. unit H are all constructed in the same manner used. with. spray and only one of said sprays ,will be described in detail which is bestillustrated in Fig. 4.

On the manifold 18 at the required locality is provided an upwardly extending boss 64. boss is constructed with an opening 85 passing through the same and communicating with the chamber 81 within the manifold. The boss 84 is threaded upon the exterior as designated at 89 to receive a screw cap '99. Cap 99 is preferably formed from sheet metal and is constructed with a closure 92 having a number of openings 9I through the same and through which'the water passes in fine streams. Said cap is further constructed with a threaded flange 94 adapted to screw upon the threads 89- to'hold the cap 'attached to the said boss. A gasket 95 placed between the closure 92 and the end of the 'boss'89 serves to maintain a tight connection between the screw cap and the boss. v

The upper spray unit 11 is constructed similarly to the unit 16 and comprises an arcuate manifold H8 constructed to form two separated sections III and I12 which follow the contour of the housing A and which are connected together by a neck II3. The manifold III has a looped branch H 1 issuing from it and the manifold H2 has a bent branch I I5 issuing fromit. These manifolds and branches are constructed hollow to provide chambers I I 6 and I I1 within the" same which do not communicate with one another. Extending downwardly from the two manifolds are sprays I88 identical with the sprays 88 of the unit 16. The description of the construction of these sprays will hence not be repeated.

The two spray units 16 and 11 are supported in the following manner: Attached to the rim I2 of tray I9 is an upright 96 formed'of sheet metal which is bent to provide a back 91 and two outwardly extending flanges 99. This upright is bolted to a rectangular lug 99 formed on the said rim which projects inwardly into the pan I9. For this purpose a bolt I9I is employed which extends jointly through said lug, rim and upright. The flanges 98 engage this lug and hold the upright in proper position. support both the lower and upper spray units 16 and 11. The lower unit 16 is threaded to receive a machine screw I62 which passes through the said back 91 of the upright 96 and which is screwed into unit 16. The unit 11 is similarly attached to the upper end of the upright 96 through another screw I93, which passes through the back 91 of said upright and which is threaded into the neck II3 thereof.

For the purpose of shutting off the hot and cold water to the sprays, a shut-off valve mechanism I94 is employed which is mounted at the front of the tray I9. Upon the interior of the tray is provided a control valve I66, which is disposed directly opposite the valve mechanism I94. The valve mechanism I94 includes a valve housing I65 and the control valve I96 includes a housing I61. These two housings are attached to the rim I2 of tray III in the following manner: Upon the valve housing I01 are formed two lugs I98. Two cap screws I I6 pass through these lugs and through a flattened portion I69 of the rim I2 and are threaded into the housing I95 of the valve mechanism I94. For regulating the pressure of the water delivered to the spray units 16 and 11 twin pressure regulating valves I63 and I 64 are employed. These valves are contained within a valve housing I65 which is formed with a flange I66 at one end thereof. The valve housing I65 is bolted to the valve housing I91 through This chamber 86 within the same.

[being provided on the right handside, and cold Upright 96 serves to 3 45 on the housing I91.

Two water pipes I29 and I39 are connected to I the-valve mechanism I94 and deliver cold and hotwater to'the spray units 16 -an'd 111.1 -The valve mechanism I9 4 utilizes a handle-I41 by means of which'the' flowof both hot and cold water to the sprays is simultaneously regulated.

The cold and hot water is'separately delivered-to construction of the valve'mechanisms 194, I96,

I63and I64 forming no particular feature of the present-invention has not been-shown or described, the disclosure the parent case being relied on for this purpose; i I

For the purpose of leading water to the vari- 'ous sprays, two flexible tubesI95' and I96 are employed which are connected by'means of tube connections I91 and I98 to two bosses I16 and I11 formed on the case I65. A branch tube I99 is alsoconnected to the tube I95 and is connected to a connection 29I formed on the part 51 of manifold 18 of the lower spray unit 16. This boss isso situated that tube I99 communicates with larly connected to a connection'292, formed on the part 56 of said manifold by means of which said 'tube is brought into communication with the chamber 81 of said manifold. -=The two corresponding chambers H6 and II1 of the upper- 293 and 269, which extend along the upright 96 and are protected and guarded thereby. These tubes are connected to the manifolds 18 and H8: in the same manner as the tubes I99 and I96. In this manner water is deliveredfrom the lower spray unit to the upper spray unit, hot water water on the left hand side.

The operation of the invention is as follows: Valve handle I63a is first turned so that hot and cold water is directed into the two pressure regulating valves I63 and I64. Handle I41 is next turned on, which delivers both hot and cold water to these valves. When the pressure in these valves reaches a predetermined amount, water is delivered through the tubes I95, I99 and I96 to the spraying device and to the Water motor C. The control valve I96 is so designed that cold water is delivered to the water motor C and to the part 51 of manifold 18 and so that hot water is delivered to the part 58 of manifold 18. The water motor C is now started and through the friction pinion 62 and the friction gear 14 drives the rack B. At the same time, sprays of hot and cold water are directed upwardly from the unit 16 and downwardly from the unit 11. These sprays wash drinking vessels which are placed upon the rack B both internally and externally. The gear train used in conjunction with the motor C is so designed that the rack B rotates counterclockwise as viewed in Fig. 2. This causes the drinking vessels to first pass the part 58 of unit 16 and the part II2 of unit 11 which sprays the drinking vessels with hot Water. As the drinking vessels pass these parts and arrive at the part 61 of unit 11, they are sprayed with cold water. This cools the drinking vessels so that when the same reach the opening 23 in the hous- Tube I96 is simi ing A they'are sufficiently cool for immediate 1 use. It: hence becomes unnecessary tolet the drinking vessels standbefore using-forthe purpose of cooling the same. When the drinking vessels. appear opposite the opening 23 in the housing A .the same may be withdrawn.

" thedrinking vessels solely with hot water, the handle [63a is turned in the opposite direction 740: I of what is claimed without departing from the to that shown in. Fig. 2 and hot water is then directed to all of the sprays andtothe motor as well. v

Qur'invention highly advantageous in that an extremely practicaldevice is provided whereby drinking glasses and similar vessels may be quickly and; easily washed. By the arrangement of the sprays the drinking vessels are thoroughly washed bothwithin and without. Anv extremely simple and practical construction is provided for forming the individual sprays by means of which water is directed upon the vessels passing between the, sprays. By means of the construction disclosed, two spray units can be employed which are disposed one above the other and between which the glasses travel. be constructed as castings and are supported. and

connectedtogether in anextremely simple and efiicient manner. The various sprays of the units are arranged in 'a manner to procure the greatesteificiency andv to wash the drinking vessels both upon the interior and the exterior and from both ends of the same. The parts though constructed as a single casting, are separated from one another so as to prevent heat loss from the hot water to the cold water.

Changes in the specific form of our invention, as herein disclosed, may be made within the scope spirit of our invention.

Having described our invention, what we. claim as new and desire to protect by Letters Patent is: 1. A spraying device comprising a central neck,

These spray units can an arcuate part issuing from one side of the central neck, a second arcuate part issuing from the other side of the central neck and lying in continuation of the first part said second part having branches at the end arranged in forked relation, a partition extending across said central neck and dividing the interior of the manifold into two compartments, water conduits communicating with said respective compartments, one of said conduits being. connected to said manifold between the. forked branches, and sprays on the various arcuate parts and branches.

2. A spraying device comprising a one-piece relatively fiat hollow manifold having a central neck and a plurality of branchesextending outwardly therefrom in several directions, sprays on said branches, a partition in the central neck dividing the manifold into two compartments, some of the sprays being in communication with one compartment and. others with the other compartment, hot and cold water conduits connected to the manifold and adapted to communicate one with each compartment, a support for the manifold attached to said neck and an insulating member disposed in said partition and heat insulating one of said compartments .from the other. i

3. A spraying device comprising a one-piece relatively flat hollow manifold having a central neck and a plurality of branches extending outwardly therefrom in several directions, sprays on said branches, a partition in the central neck dividing the manifold into two compartments, some of the sprays being in communication with one compartment and others with the other compartment, hot and cold water conduits connected to the manifold and adapted to communicate one with each compartment, a support for the manifold. attached to said neck, said partition having an opening extending ,therethrough, and a heat insulating, block disposed within said opening and. heat insulating one compartment from the other.

' WALTER F. OHME.

RAY C. STEPHAN. 

